Sash-balance



(No Model.)

F. JOHNSON.

SASH BALANCE.

Patented Jan 26, 1886.

FFICEQ PATN .ANDREW F. JOHNSON, OF DASSEL, MINNESOTA.

SASH-BALANCE.

SPECIFICATION forming part of Letters Patent No. 334,868, dated January 26, 1886.

Application filed October 23, 1885. Serial No. 180,708. (No model.)

To all whom, it may concern.-

Be it known that I, ANDREW F. JOHNSON, a citizen of the United States, residing at Dassel, in the county. of Meeker and State of Minnesota, have invented certain new and useful Improvements in Vindow-Sash Balances; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to window-balancing; and it consists of the novel combination and arrangement of its parts, hereinafter fully set forth and described.

In the accompanying drawings, Figure 1 is a face view of a window frame and sash, with the sash cut away to show the balancing device. Fig. 2 is a perpendicular sectional view of the same, cut through Fig. 1 at the line or m. Fig. 3 is a detail sectional view of the shaft, hub, and pin, out through Fig. 2 on the dotted line y y.

The object of my invent-ion is to accomplish the balancing ofa pair of sash in the manner hereinafter described and claimed.

My invention is described as follows: In an ordinary window-frame, 1, having the parting-strips 2 and guard-strips 3 3, or their equivalents, in the inner face of the partingstrips 2 I secure pins 4 4, as bearings for the hubs 5 to be journaled on. These hubs 5 have a hole, 6, in their large ends to receive the said pins, and a groove, 7, cut around the same for a chain or cord, 8, to run in. They also have holes 9 in their small ends for the ends of the shaft 10 to be secured in. Near either end of the shaft 10 andin its periphery is a depression, 11, into which is pinched a part of the nose 12 of the hub 5, which rigidly secures the same to the shaft. This shaft 10 and its hubs 5 are journaled between the parting'strips 2 and the pinsat the points where the two sash 13 meet, or it may be journaled at any point above this point. YVhen journaled at the point where the two sash meet, the lips 14 of said sash have a groove, 15, cut in them, one in the lower face of the lip of the upper sash and the other in the upper lip of the lower sash, in such relative position to each other that when the two lips meet these said grooves surround and perfectly inclose the said shaft and hubs. The said grooves need not extend to the ends of said lips, but only to the line of the face of the parting-strips 2 when the hubs do not extend into the said strips; but when said hubs are countersunk in said partingstrips then the said grooves must extend to the ends of the said lips. Over the hubs 5 and in the grooves 15, forming a pulley, I put a chain or cord, 8, one end ofwhich I attach to the inner face of the upper sash, and the other end I attach to the outer face of the lower sash; and the said chain or cord 8 is of such length and attached at such points on said sash, that when the upper sash is up against the lintel of the windowframe the lower sash will be down against the window-sill, and the shaft 10 and hubs 5 will be inclosed in the grooves 15 in the lips 14. WVhere the two sash are made of the same weight, they will be perfectly balanced on the said cords or chains 8.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, 1s-

1. The combination of the shaft 10, having the depressions 11 in its periphery near either end, with hub 5, having the nose 12, groove 7, and bearing-pins 4, substantially as shown and described, and for the purposes set forth.

2. In combination with a window-frame, 1, the window-sash 13, having the grooved lips 14, chain or cord 8, hubs 5, bearing -pins 4, and shaft 10, all when arranged substantially as shown and described, and for the purposes set forth.

In testimony whereof Iaffix my signature in presence of two witnesses.

ANDREW F. JOHNSON.

Witnesses:

Louis OSTERLUND, W. S. BARTHOLOMEW. 

